Wallace lyon



(No Model.) Y

W. LYON.

BIT AND DRILL STOGK. No. 250,670. Patented Dec. 13,1881.

, WITNESSES: M WW1. By his .dttorney, I

' "UNTTED STATES PATENT OFFICE.

WALLACE LYON, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO MILLERS FALLSCOMPANY, OF NEW YORK, N. Y.

BIT AND DRILL STOCK.

SPECIFICATION forming part of Letters Patent No. 250,670, dated December13, 1881.

Application filed August- 2,1881. (No model.)

To all whom it may concern Be it known that I, WALLACE LYON, a citizenof the United States, residing at Bridgeport, in the county of'Fairfieldand State of Connecticut, have invented a Combined Bit Stock or Braceand Multiplying-Drill Mechanism, of which the following is aspecification.

My invention relates to a combination of a bit brace or stock providedwith a socket for an auger-bit and multiplying-gear mechanism and socketor chuck, which may be rotated independently of the bit-stock for use indrilling metals. The same socket serves for the auger-bit and the drill,or a drill-chuck may be fitted to the socket.

In the drawings which serve to illustrate my invention, Figure 1 is aside elevation of the combined tool, complete, and Fig. 2 is a plan orend view of the rotative portions of the tool. Fig. 3 is a sectionalView, showing the mode of mounting the removable bevelwheel of themultiplying-gear.

Let A represent a brace or bit stock of the usual kind, but providedwith a rotative socket or chuck, B, instead of a fixed one, as is usualin such tools. This socket has a spindle, a, which has bearings at b bin the stock, and on this spindle is fixed a bevel-pinion, 0, arrangedto mesh with'alarger bevel-wheel, d, mounted in bearings in the bar ofthe stock at e. The socket is provided with a circular projectingflange, f, in which is formed a notch or recess capable of being engagedby a spring-detent, g, as shown. The bevel-wheel d is removable, and byreference to Fig. 3 it will be seen that it is secured to the end of aspindle, h, which has formed on it an enlargement, 'i, in which is cut acircumferential groove. This enlargement rests and revolves in anenlargement of thebearing-socketiu the brace-bar, and a screw, j, with acylindrical shank, is arranged to screw into the bar in such a mannerthat its shank engages the groove in the spindle or arbor, as shown.This screw prevents the wheel and its spindle from being removed, butpermits it to revolve freely, as will be readily understood.

lVhen the tool is to be used as a bit-stock the wheel d may be readilyremoved by first removing the screw j and then slipping the spindle fromits socket or hearing. The auger-bit may then be inserted in the socketB, secured in placebv the screw 7:, and used as with an ordinarybit-stock.

When the tool is to be used as a drill, especially when the drill issmall and rapid rotation is desired, the wheel (1 is replaced, thedeteutg drawn back out of the notch in the flangef, and retained in thatposition by turning it axially until the pin l at its rear end isreleased from its notch and rests on the higher part of the bearing m,and the tool is ready for use.

The drills may in some cases be secured directly in the socket B; butordinarily where they are slender, as in the case of small twist- 6 5drills, they will be secured in a chuck, and the spindle or shank of thechuck will be fitted into the socket B, and secured by the set-screw inthe manner of an auger-bit.

In addition to the function of the detent g, above described, it alsoserves as a spring-pawl to engage ratchet-teeth on the flange f, wherebythe tool may be employed as a ratchet-drill. To enable the detent toperform this function, its tip is beveled off, and it is made to turn onits axis, so that the beveled end is properly presented to theratchet-notches, and it is retained in this position by the engagementof the pin 1 with a suitably-arranged notch or recess in the bearing m.The flangef may be provided with a double set of ratchet-notches,arranged oppositely, as shown, and the pawl-detent may be arranged toturn axially, so as to present its beveled end properly to either set,whereby the tool may be used as a right-hand or lefthand ratchet-drillat will. This feature of the ratchet is not my invention however, and Imake no claim to it as a distinct device.

Any form of detent or fastening may be employed to prevent theindependent rotation of c the socket B when used as a bit-holder, and itis not necessary that the bevel-wheel cl be removed when not in use fordrilling. It is preferably removed, however, as it cucumbers the tool. 5

Other methods than that shown for securing the wheel d in place may alsobe employed in lieu of that shown-as, for instance, a stud or pin with ahead on its outer end may be passed through the wheel into the socketand there held by a set-screw.

O is the crank for rotating the wheel d. I prefer to attach this to thewheel by screwing it onto the end of the spindle h, to which the wheelis fixed. This enables me to employ more or less leverage for larger orsmaller drills, as the crank is or may be provided with two or moreholes, a a, to engage the end of the spindle h, whereby its throw may bevaried, as will be readily understood.

Having thus described my invention, I claim 1. The combination of thebrace A, rotative socket B, bevel-pinion c, fixed to the socket, largerbevel-wheel d, notched ratchet-flange f, fixed to the socket, and aspring-pawl arranged to engage the said flange and form a shiftingautomatic ratchet-detent to prevent the rotation of the socket except asdesired by the operator, substantially as and for the purposes setforth.

2. The combination, with the brace, the independently-rotating socket,the locking device, and the pinion on the socket-spindle, of the wheeld, the spindle h, provided with a peripherally-grooved enlargement, i,and arranged to tit into a bearin g in bar of the brace, and the screwj, all arranged to operate substantiall y as and for the purposes setforth.

3. The combination of the brace, the socket mounted rotativel y thereinand provided with anotched flange or projection, f, the springdetent g,arranged to engage a notch in the flange, and provided with a pin, Z,the notched or recessed bearing m, pinion c, and wheel (I, all arrangedsubstantially as set forth.

In witness whereof I have hereunto signed my name in the presence of thesubscribing 40 witnesses.

' WALLACE LYON. Witnesses:

CURTIS THoMPsoN, P. KANE,

CARL WAR'rH.

